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Groups > linux.kernel > #1199854
| From | Scott Shu <scott.shu@mediatek.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 8/8] ARM: dts: mt6580: enable basic SMP bringup for MT6580 |
| Date | 2015-08-04 16:00 +0200 |
| Message-ID | <pTKV3-3Un-1@gated-at.bofh.it> (permalink) |
| References | <pTKV3-3Un-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Add arch timer node to enable arch-timer support. MT6580 firmware
doesn't correctly setup arch-timer frequency and CNTVOFF, add
properties to workaround this.
This set cpu enable-method to enable SMP.
Signed-off-by: Scott Shu <scott.shu@mediatek.com>
---
arch/arm/boot/dts/mt6580.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm/boot/dts/mt6580.dtsi b/arch/arm/boot/dts/mt6580.dtsi
index 40957d3..70531b2 100644
--- a/arch/arm/boot/dts/mt6580.dtsi
+++ b/arch/arm/boot/dts/mt6580.dtsi
@@ -25,26 +25,31 @@
cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "mediatek,mt6580-smp";
cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x0>;
+ clock-frequency = <1700000000>;
};
cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x1>;
+ clock-frequency = <1700000000>;
};
cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x2>;
+ clock-frequency = <1700000000>;
};
cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x3>;
+ clock-frequency = <1700000000>;
};
};
@@ -67,6 +72,21 @@
#clock-cells = <0>;
};
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
+ IRQ_TYPE_LEVEL_LOW)>;
+ clock-frequency = <13000000>;
+ arm,cpu-registers-not-fw-configured;
+ };
+
scpsys: scpsys@10006000 {
#power-domain-cells = <1>;
compatible = "mediatek,mt6580-scpsys";
--
1.7.9.5
--
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[PATCH v3 8/8] ARM: dts: mt6580: enable basic SMP bringup for MT6580 Scott Shu <scott.shu@mediatek.com> - 2015-08-04 16:00 +0200
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